At a one-day workshop hosted by DIW Berlin and the Economics of Security Initiativeand walking distance from the former site of the most famous wall of the TwentiethCentury, we would like to discuss the economic determinants, functions and impactsof walls from both a microeconomic and macroeconomic perspective. Topics intheoretical or empirical economics or closely related disciplines could include, but are not limited to:- The role that walls play in international trade and migration- How enclaves and exclaves deal with their territorial, walled status- Whether walls affect the probability of international conflict- The use of walls in regression discontinuity analysis- The economic geography of walls, for example using GIS technology- How walls affect domestic and international security- The public opinion on and the perception of building walls- The economic consequences of the fall of the Berlin Wall- Issues of causality in building walls[gem?_?? den Informationen des Anbieters - according to site editor's information]